About: http://webisa.webdatacommons.org/21839949

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	What is a firewall?: In it is simplest form, a firewall is a mechanism that prevents unauthorized access to or from a computer or a computing network.
http://www.w3.org/ns/prov#wasQuotedFrom	europa.com